/*
REWRITTEN BY XINEF
*/

#include "ScriptMgr.h"
#include "ScriptedCreature.h"
#include "drak_tharon_keep.h"
#include "SpellScript.h"

enum Spells
{
	SPELL_BELLOWING_ROAR				= 22686,
	SPELL_GRIEVOUS_BITE					= 48920,
	SPELL_MANGLING_SLASH				= 48873,
	SPELL_FEARSOME_ROAR					= 48849,
	SPELL_PIERCING_SLASH				= 48878,
	SPELL_RAPTOR_CALL					= 59416
};

enum Misc
{
	NPC_DRAKKARI_SCYTHECLAW				= 26628,
	NPC_DRAKKARI_GUTRIPPER				= 26641,

	SAY_CLAW_EMOTE						= 0,

	EVENT_SPELL_BELLOWING_ROAR			= 1,
	EVENT_SPELL_GRIEVOUS_BITE			= 2,
	EVENT_SPELL_MANGLING_SLASH			= 3,
	EVENT_SPELL_FEARSOME_ROAR			= 4,
	EVENT_SPELL_PIERCING_SLASH			= 5,
	EVENT_SPELL_RAPTOR_CALL				= 6,
	EVENT_MENACING_CLAW					= 7
};

class boss_dred : public CreatureScript
{
	public:
		boss_dred() : CreatureScript("boss_dred") {}

		CreatureAI *GetAI(Creature *creature) const
		{
			return GetInstanceAI<boss_dredAI>(creature);
		}

		struct boss_dredAI : public BossAI
		{
			boss_dredAI(Creature* creature) : BossAI(creature, DATA_DRED)
			{
			}

			void Reset()
			{
				BossAI::Reset();
				_raptorCount = 0;
			}

			uint32 GetData(uint32 data) const
			{
				if (data == me->GetEntry())
					return uint32(_raptorCount >= _raptorCount);
				return 0;
			}

			void SetData(uint32 type, uint32)
			{
				if (type == me->GetEntry())
					++_raptorCount;
			}

			void EnterCombat(Unit* who)
			{
				BossAI::EnterCombat(who);
				_raptorCount = 0;

				events.ScheduleEvent(EVENT_SPELL_BELLOWING_ROAR, 33000);
				events.ScheduleEvent(EVENT_SPELL_GRIEVOUS_BITE, 20000);
				events.ScheduleEvent(EVENT_SPELL_MANGLING_SLASH, 18500);
				events.ScheduleEvent(EVENT_SPELL_FEARSOME_ROAR, urand(10000,20000));
				events.ScheduleEvent(EVENT_SPELL_PIERCING_SLASH, 17000);
				if (IsHeroic())
				{
					events.ScheduleEvent(EVENT_MENACING_CLAW, 21000);
					events.ScheduleEvent(EVENT_SPELL_RAPTOR_CALL, urand(20000,25000));
				}
			}

			void UpdateAI(uint32 diff)
			{
				if (!UpdateVictim())
					return;

				events.Update(diff);
				if (me->HasUnitState(UNIT_STATE_CASTING))
					return;

				switch (events.ExecuteEvent())
				{
					case EVENT_SPELL_BELLOWING_ROAR:
						me->CastSpell(me, SPELL_BELLOWING_ROAR, false);
						events.ScheduleEvent(EVENT_SPELL_BELLOWING_ROAR, 40000);
						break;
					case EVENT_SPELL_GRIEVOUS_BITE:
						me->CastSpell(me->GetVictim(), SPELL_GRIEVOUS_BITE, false);
						events.ScheduleEvent(EVENT_SPELL_GRIEVOUS_BITE, 20000);
						break;
					case EVENT_SPELL_MANGLING_SLASH:
						me->CastSpell(me->GetVictim(), SPELL_MANGLING_SLASH, false);
						events.ScheduleEvent(EVENT_SPELL_MANGLING_SLASH, 20000);
						break;
					case EVENT_SPELL_FEARSOME_ROAR:
						me->CastSpell(me, SPELL_FEARSOME_ROAR, false);
						events.ScheduleEvent(EVENT_SPELL_FEARSOME_ROAR, 17000);
						break;
					case EVENT_SPELL_PIERCING_SLASH:
						me->CastSpell(me->GetVictim(), SPELL_PIERCING_SLASH, false);
						events.ScheduleEvent(EVENT_SPELL_PIERCING_SLASH, 20000);
						break;
					case EVENT_SPELL_RAPTOR_CALL:
						me->CastSpell(me, SPELL_RAPTOR_CALL, false);
						events.ScheduleEvent(EVENT_SPELL_RAPTOR_CALL, 20000);
						break;
					case EVENT_MENACING_CLAW:
						Talk(SAY_CLAW_EMOTE);
						me->setAttackTimer(BASE_ATTACK, 2000);
						me->AttackerStateUpdate(me->GetVictim());
						if (me->GetVictim())
							me->AttackerStateUpdate(me->GetVictim());
						if (me->GetVictim())
							me->AttackerStateUpdate(me->GetVictim());
						events.ScheduleEvent(EVENT_MENACING_CLAW, 20000);
						break;
				}

				DoMeleeAttackIfReady();
			}

		private:
			uint8 _raptorCount;
		};
};

class spell_dred_grievious_bite : public SpellScriptLoader
{
	public:
		spell_dred_grievious_bite() : SpellScriptLoader("spell_dred_grievious_bite") { }

		class spell_dred_grievious_bite_AuraScript : public AuraScript
		{
			PrepareAuraScript(spell_dred_grievious_bite_AuraScript);

			void OnPeriodic(AuraEffect const* /*aurEff*/)
			{
				if (Unit* target = GetTarget())
					if (target->GetHealth() == target->GetMaxHealth())
					{
						PreventDefaultAction();
						SetDuration(0);
					}
			}

			void Register()
			{
				OnEffectPeriodic += AuraEffectPeriodicFn(spell_dred_grievious_bite_AuraScript::OnPeriodic, EFFECT_1, SPELL_AURA_PERIODIC_DAMAGE);
			}
		};

		AuraScript* GetAuraScript() const
		{
			return new spell_dred_grievious_bite_AuraScript();
		}
};

class spell_dred_raptor_call : public SpellScriptLoader
{
    public:
        spell_dred_raptor_call() : SpellScriptLoader("spell_dred_raptor_call") { }

        class spell_dred_raptor_call_SpellScript : public SpellScript
        {
            PrepareSpellScript(spell_dred_raptor_call_SpellScript);

            void HandleDummy(SpellEffIndex /*effIndex*/)
            {
                GetCaster()->SummonCreature(RAND(NPC_DRAKKARI_GUTRIPPER, NPC_DRAKKARI_SCYTHECLAW), -522.02f, -718.89f, 30.26f, 2.41f);
            }

            void Register()
            {
                OnEffectHitTarget += SpellEffectFn(spell_dred_raptor_call_SpellScript::HandleDummy, EFFECT_0, SPELL_EFFECT_DUMMY);
            }
        };

        SpellScript* GetSpellScript() const
        {
            return new spell_dred_raptor_call_SpellScript();
        }
};

class achievement_better_off_dred : public AchievementCriteriaScript
{
    public:
        achievement_better_off_dred() : AchievementCriteriaScript("achievement_better_off_dred")
        {
        }

        bool OnCheck(Player* /*player*/, Unit* target)
        {
            if (!target)
                return false;

			return target->GetAI()->GetData(target->GetEntry());
        }
};

void AddSC_boss_dred()
{
	new boss_dred();
	new spell_dred_grievious_bite();
	new spell_dred_raptor_call();
	new achievement_better_off_dred();
}
